Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827289 | Thermal head | Shiro Tsuji, Eizo Naya, Takashi Yamanaka, Hiroshi Ito, Noriyuki Hasebe | 1989-05-02 |
| 4419553 | Vacuum type circuit breaker | Masayuki Ohshita, Toshiaki Horiuchi, Takashi Yamanaka | 1983-12-06 |